CN103402206A

CN103402206A - Interference processing method and base station

Info

Publication number: CN103402206A
Application number: CN2013103002930A
Authority: CN
Inventors: 刘劲楠
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2013-07-17
Filing date: 2013-07-17
Publication date: 2013-11-20
Also published as: WO2015007122A1

Abstract

The embodiment of the invention provides an interference processing method and a base station. The method comprises the following steps that a small cell base station measures a characteristic measurement amount of a downlink reference signal of a same-frequency neighbor small cell base station in an uplink interference sub-frame with the same-frequency neighbor small cell base station; and the small cell base station determines scheduling information for a scheduling terminal according to the characteristic measurement amount, and schedules the scheduling terminal according to the scheduling information. According to the interference processing method and the base station, interference between the same-frequency small cell base stations can be reduced according to the characteristic measurement amount.

Description

Disturb processing method and base station

Technical field

The present invention relates to the communication technology, relate in particular to a kind of interference processing method and base station.

Background technology

In order to improve the availability of frequency spectrum and to support up-downgoing business flexibly, introduced time division duplex (Time Division Duplexing in cellular communication, be called for short: (Long Term Evolution, be called for short: LTE) standard is accepted by Long Term Evolution at present for TDD) mode, this TDD standard.Uplink and downlink share frequency range and cut apart in time in the TDD mode, the position between can the flexible configuration uplink downlink., such as just support multiple different up-downgoing proportion relation in the LTE standard, can meet dissimilar up-downgoing non-symmetrical service.

But in real network, consider the up-downgoing interference problem between residential quarter, the co-frequency cell of different proportionings coexists very difficult, can exist base station to the interference to terminal (UE-UE) of the interference of base station (BS-BS) and terminal.For example, supposing base station 1 and the base station 2 different proportionings of employing, is respectively that TDD proportioning a1 is adopted in base station 1, and TDD proportioning a2 are adopted in base station 2.When base station 1 sends downlink data, can receive upstream data to base station 2 and produce interference so.Similar for terminal on the contrary, the terminal 2 that belongs to base station 2 sends up the time, and the downlink data that may receive to the terminal 1 that belongs to base station 1 base station 1 produces serious interference.Disturb for fear of this up-downgoing, in the common-frequency network of isomorphism, identical proportioning is adopted in base station at present, but limited like this proportioning of the base station of different business independently adjusting separately according to own up-downgoing service dynamic, configures, and is unfavorable for improving spectrum efficiency.Under the isomery scene that proposes at present, increased the less website of coverage in the coverage of macro base station, as small-cell base station; Independent load variations according to oneself changes the TDD proportioning if small-cell and macrocell not on identical frequency, just can allow small-cell base station.

Limit small-cell base station according to business configuration dynamic change proportioning under above-mentioned isomery scene, prior art has proposed to adopt the technology of blank subframe, namely introduce a kind of new subframe type in present frame structure, namely neither send up, do not send descending yet, replace the upstream or downstream subframe of conflict, manage conflict.But this mode, because some subframe is not used for the transmission of data, has been wasted frequency spectrum resource.

Summary of the invention

The embodiment of the present invention provides a kind of interference processing method and base station, to reduce with the interference of small-cell base station frequently.

First aspect, provide a kind of interference processing method, comprising:

Small-cell base station in the uplink interference subframe with frequency neighbours small-cell base station, is measured the pattern measurement amount of described downlink reference signal with frequency neighbours small-cell base station;

Described small-cell base station, according to described pattern measurement amount, is identified for the schedule information of dispatch terminal, and according to described schedule information, described dispatch terminal is dispatched.

In conjunction with first aspect, in the possible implementation of the first, the pattern measurement amount of the described downlink reference signal with frequency neighbours small-cell base station of described measurement comprises: the signal received power of measuring described downlink reference signal with frequency neighbours small-cell base station; Described small-cell base station, according to described pattern measurement amount, is identified for the schedule information of dispatch terminal, comprising: described small-cell base station, according to described signal received power, calculates the expection transmitting power of described dispatch terminal; And determine the uplink transmission power of described dispatch terminal according to described expection transmitting power; Describedly according to described schedule information, described dispatch terminal is dispatched, comprising: described small-cell base station is notified described dispatch terminal with described uplink transmission power, so that described dispatch terminal adopts described uplink transmission power to send upstream data.

In conjunction with the possible implementation of the first of first aspect, in the possible implementation of the second, the described uplink transmission power of determining described dispatch terminal according to described expection transmitting power, comprise: if described expection transmitting power, less than the maximum uplink transmission power of described dispatch terminal, is determined the uplink transmission power of described expection transmitting power as described dispatch terminal.

In conjunction with the possible implementation of the second of first aspect, in the third possible implementation, described dispatch terminal is that described small-cell base station is selected to determine from least two terminals to be selected; If there are at least two the to be selected terminals of described expection transmitting power less than the maximum uplink transmission power of terminal described to be selected, described dispatch terminal is that described small-cell base station is selected to determine from least two terminals to be selected, and comprising: select the terminal to be selected of the described expection transmitting power minimum in described at least two terminals to be selected as described dispatch terminal.

In conjunction with the possible implementation of the first of first aspect, in the 4th kind of possible implementation, the described uplink transmission power of determining described dispatch terminal according to described expection transmitting power, comprise:, if described expection transmitting power is greater than or equal to the maximum uplink transmission power of described dispatch terminal, determine the uplink transmission power of described maximum uplink transmission power as described dispatch terminal; Describedly according to described schedule information, described dispatch terminal is dispatched, also comprise: described small-cell base station is notified described dispatch terminal, does not send upstream data on described Resource Unit with the downlink reference signal place of neighbours' small-cell base station frequently.

the 4th kind of possible implementation in conjunction with first aspect, in the 5th kind of possible implementation, described determine the uplink transmission power of described maximum uplink transmission power as described dispatch terminal after, also comprise: described small-cell base station is notified the uplink reference signals pattern of described dispatch terminal described with frequency neighbours small-cell base station, so that described same neighbours' small-cell base station frequently is according to described uplink reference signals pattern, the neighbours terminal scheduling of the signal power of described uplink reference signals less than threshold value arrived in selective reception, described neighbours' terminal is described terminal with neighbours' small-cell base station service frequently.

In conjunction with the possible implementation of the first of first aspect, in the 6th kind of possible implementation, if described expection transmitting power is greater than or equal to the maximum uplink transmission power of described dispatch terminal, described method also comprises: described small-cell base station is notified described with frequency neighbours small-cell base station, asks described power with the downlink data of neighbours' small-cell base station transmission frequently to be less than or equal to critical power; The transmitting power that described critical power equals described downlink reference signal with frequency neighbours small-cell base station deducts difference power, and described difference power equals the receptible described peak signal received power with frequency neighbours small-cell base station of described small-cell base station and the difference of described signal received power.

In conjunction with first aspect, in the 7th kind of possible implementation, the pattern measurement amount of the described downlink reference signal with frequency neighbours small-cell base station of described measurement comprises: the direction of arrival of measuring described downlink reference signal with frequency neighbours small-cell base station; Described small-cell base station is according to described pattern measurement amount, be identified for the schedule information of dispatch terminal, comprise: described small-cell base station is according to described direction of arrival, determine the beam forming deflection of described dispatch terminal, described beam forming deflection and described direction of arrival meet away from threshold value; Describedly according to described schedule information, described dispatch terminal is dispatched, comprising: described small-cell base station is dispatched dispatch terminal corresponding to described beam forming deflection.

the 7th kind of possible implementation in conjunction with first aspect, in the 8th kind of possible implementation, after the direction of arrival of the described downlink reference signal with frequency neighbours small-cell base station of described measurement, also comprise: described small-cell base station will be used to indicate the angle of arrival indication information of described direction of arrival and notify described with frequency neighbours small-cell base station, so that described same neighbours' small-cell base station is frequently dispatched according to described angle of arrival indication information select target neighbours terminal, described target neighbours' terminal is described terminal with neighbours' small-cell base station service frequently, and the beam forming deflection of described target neighbours' terminal and described direction of arrival meet away from threshold value.

In conjunction with the 8th kind of possible implementation of first aspect, in the 9th kind of possible implementation, described angle of arrival indication information comprises: described direction of arrival or pre-coding matrix indication.

In conjunction with first aspect, in the tenth kind of possible implementation, before the pattern measurement amount of the described downlink reference signal with frequency neighbours small-cell base station of described measurement, also comprise: described small-cell base station is determined described with frequency neighbours' small-cell base station and described uplink interference subframe.

The tenth kind of possible implementation in conjunction with first aspect, in the 11 kind of possible implementation, described small-cell base station is determined described with frequency neighbours' small-cell base station and described uplink interference subframe, comprise: if described small-cell base station is resolved the broadcast of another base station, get cell ID and up-downgoing proportioning that described broadcast comprises, determine that described another base station is with frequency neighbours small-cell base station; Described small-cell base station is determined described uplink interference subframe according to described up-downgoing proportioning.

The tenth kind of possible implementation in conjunction with first aspect, in the 12 kind of possible implementation, described small-cell base station is determined described with frequency neighbours' small-cell base station and described uplink interference subframe, comprise: described small-cell base station detects the signal received power of the downlink reference signal of another base station in the sub-frame of uplink of self, if described signal received power is more than or equal to predetermined threshold value, determine that described another base station is described with frequency neighbours small-cell base station, and described sub-frame of uplink is described uplink interference subframe.

Second aspect, provide a kind of base station, comprising:

Information acquisition unit, be used in the uplink interference subframe with frequency neighbours small-cell base station, measures the pattern measurement amount of described downlink reference signal with frequency neighbours small-cell base station;

Scheduling processing unit, be used for the described pattern measurement amount of measuring according to described information acquisition unit, is identified for the schedule information of dispatch terminal;

Scheduling execution units, be used for according to the described schedule information that described scheduling processing unit is determined, described dispatch terminal being dispatched.

In conjunction with second aspect, in the possible implementation of the first, described information acquisition unit, specifically be used in the uplink interference subframe with frequency neighbours small-cell base station, measures the signal received power of described downlink reference signal with frequency neighbours small-cell base station; Described scheduling processing unit, the concrete described signal received power of measuring according to described information acquisition unit that is used for, the expection transmitting power of the described dispatch terminal of calculating; And determine the uplink transmission power of described dispatch terminal according to described expection transmitting power; Described scheduling execution units, concrete being used for notified described dispatch terminal with the described uplink transmission power that described scheduling processing unit is determined, so that described dispatch terminal adopts described uplink transmission power to send upstream data.

In conjunction with the possible implementation of the first of second aspect, in the possible implementation of the second, described scheduling processing unit, when according to described expection transmitting power, determining the uplink transmission power of described dispatch terminal, if the concrete maximum uplink transmission power of described expection transmitting power less than described dispatch terminal that be used for, determine the uplink transmission power of described expection transmitting power as described dispatch terminal.

In conjunction with the possible implementation of the second of second aspect, in the third possible implementation, described scheduling processing unit, also be used for described dispatch terminal be described small-cell base station from least two when selecting terminal to select to determine,, if there are at least two the to be selected terminals of described expection transmitting power less than the maximum uplink transmission power of terminal described to be selected, select the terminal to be selected of the described expection transmitting power minimum in described at least two terminals to be selected as described dispatch terminal.

In conjunction with the possible implementation of the first of second aspect, in the 4th kind of possible implementation, described scheduling processing unit, when according to described expection transmitting power, determining the uplink transmission power of described dispatch terminal, if the concrete maximum uplink transmission power that is greater than or equal to described dispatch terminal for described expection transmitting power, determine the uplink transmission power of described maximum uplink transmission power as described dispatch terminal; Described scheduling execution units, also be used for notifying described dispatch terminal, do not send upstream data on the Resource Unit at described downlink reference signal place with frequency neighbours small-cell base station.

the 4th kind of possible implementation in conjunction with second aspect, in the 5th kind of possible implementation, described scheduling execution units, also be used for after described scheduling processing unit is determined the uplink transmission power of described maximum uplink transmission power as described dispatch terminal, the uplink reference signals pattern of described dispatch terminal is notified described with frequency neighbours small-cell base station, so that described same neighbours' small-cell base station frequently is according to described uplink reference signals pattern, the neighbours terminal scheduling of the signal power of described uplink reference signals less than threshold value arrived in selective reception, described neighbours' terminal is described terminal with neighbours' small-cell base station service frequently.

In conjunction with the possible implementation of the first of second aspect, in the 6th kind of possible implementation, described scheduling execution units, also be used for when described scheduling processing unit determines that described expection transmitting power is greater than or equal to the maximum uplink transmission power of described dispatch terminal, notify described same neighbours' small-cell base station frequently, ask described power with the downlink data of neighbours' small-cell base station transmission frequently to be less than or equal to critical power; The transmitting power that described critical power equals described downlink reference signal with frequency neighbours small-cell base station deducts difference power, and described difference power equals the receptible described peak signal received power with frequency neighbours small-cell base station of described small-cell base station and the difference of described signal received power.

In conjunction with second aspect, in the 7th kind of possible implementation, described information acquisition unit, the concrete direction of arrival that is used for measuring described downlink reference signal with frequency neighbours small-cell base station; Described scheduling processing unit, specifically be used for the described direction of arrival that measures according to described information acquisition unit, determines the beam forming deflection of described dispatch terminal, and described beam forming deflection and described direction of arrival meet away from threshold value; Described scheduling execution units, concrete being used for dispatches dispatch terminal corresponding to described beam forming deflection.

the 7th kind of possible implementation in conjunction with second aspect, in the 8th kind of possible implementation, described scheduling execution units, also be used for after described information acquisition unit measures the direction of arrival of described downlink reference signal, the angle of arrival indication information that is used to indicate described direction of arrival is notified described with frequency neighbours small-cell base station, so that described same neighbours' small-cell base station is frequently dispatched according to described angle of arrival indication information select target neighbours terminal, described target neighbours' terminal is described terminal with neighbours' small-cell base station service frequently, and the beam forming deflection of described target neighbours' terminal and described direction of arrival meet away from threshold value.

In conjunction with the 8th kind of possible implementation of second aspect, in the 9th kind of possible implementation, described angle of arrival indication information comprises: described direction of arrival or pre-coding matrix indication.

In conjunction with second aspect, in the tenth kind of possible implementation, described information acquisition unit, also be used for determining described same neighbours' small-cell base station and uplink interference subframe frequently before the pattern measurement amount of measuring described downlink reference signal with frequency neighbours small-cell base station.

The tenth kind of possible implementation in conjunction with second aspect, in the 11 kind of possible implementation, described information acquisition unit, when determining described same neighbours' small-cell base station frequently and uplink interference subframe, resolve the broadcast of another base station if specifically be used for described small-cell base station, get cell ID and up-downgoing proportioning that described broadcast comprises, determine that described another base station is described with frequency neighbours small-cell base station; Determine described uplink interference subframe according to described up-downgoing proportioning.

The tenth kind of possible implementation in conjunction with second aspect, in the 12 kind of possible implementation, described information acquisition unit, when determining described same neighbours' small-cell base station frequently and uplink interference subframe, specifically be used for detecting at the sub-frame of uplink of self the signal received power of the downlink reference signal of another base station, if described signal received power is more than or equal to predetermined threshold value, determine that described another base station is described with frequency neighbours small-cell base station, and described sub-frame of uplink is described uplink interference subframe.

The third aspect, provide a kind of base station, comprising:

Receiver, be used for receiving and the same uplink interference subframe of neighbours' small-cell base station frequently;

Processor, be used for the described uplink interference subframe that receives at described receiver, measures the pattern measurement amount of described downlink reference signal with frequency neighbours small-cell base station; Be identified for the schedule information of dispatch terminal according to described pattern measurement amount; And, according to described schedule information, described dispatch terminal is dispatched.

In conjunction with the third aspect, in the possible implementation of the first, described processor, concrete being used in the uplink interference subframe with frequency neighbours small-cell base station, measure the described same signal received power of the downlink reference signal of neighbours' small-cell base station frequently; Calculate the expection transmitting power of described dispatch terminal according to described signal received power; And determine the uplink transmission power of described dispatch terminal according to described expection transmitting power; Described base station also comprises reflector, is used for notifying described dispatch terminal with the described uplink transmission power that described processor is determined, so that described dispatch terminal adopts described uplink transmission power to send upstream data.

In conjunction with the possible implementation of the first of the third aspect, in the possible implementation of the second, described processor, when according to described expection transmitting power, determining the uplink transmission power of described dispatch terminal, if the concrete maximum uplink transmission power of described expection transmitting power less than described dispatch terminal that be used for, determine the uplink transmission power of described expection transmitting power as described dispatch terminal.

In conjunction with the possible implementation of the second of the third aspect, in the third possible implementation, described processor, also be used for described dispatch terminal be described small-cell base station from least two when selecting terminal to select to determine,, if there are at least two the to be selected terminals of described expection transmitting power less than the maximum uplink transmission power of terminal described to be selected, select the terminal to be selected of the described expection transmitting power minimum in described at least two terminals to be selected as described dispatch terminal.

In conjunction with the possible implementation of the first of the third aspect, in the 4th kind of possible implementation, described processor, when according to described expection transmitting power, determining the uplink transmission power of described dispatch terminal, if the concrete maximum uplink transmission power that is greater than or equal to described dispatch terminal for described expection transmitting power, determine the uplink transmission power of described maximum uplink transmission power as described dispatch terminal; Described reflector, also be used for notifying described dispatch terminal, do not send upstream data on the Resource Unit at described downlink reference signal place with frequency neighbours small-cell base station.

the 4th kind of possible implementation in conjunction with the third aspect, in the 5th kind of possible implementation, described reflector, also be used for after described processor is determined the uplink transmission power of described maximum uplink transmission power as described dispatch terminal, the uplink reference signals pattern of described dispatch terminal is notified described with frequency neighbours small-cell base station, so that described same neighbours' small-cell base station frequently is according to described uplink reference signals pattern, the neighbours terminal scheduling of the signal power of described uplink reference signals less than threshold value arrived in selective reception, described neighbours' terminal is described terminal with neighbours' small-cell base station service frequently.

In conjunction with the possible implementation of the first of the third aspect, in the 6th kind of possible implementation, described reflector, also be used for when described processor determines that described expection transmitting power is greater than or equal to the maximum uplink transmission power of described dispatch terminal, notify described same neighbours' small-cell base station frequently, ask described power with the downlink data of neighbours' small-cell base station transmission frequently to be less than or equal to critical power; The transmitting power that described critical power equals described downlink reference signal with frequency neighbours small-cell base station deducts difference power, and described difference power equals the receptible described peak signal received power with frequency neighbours small-cell base station of described small-cell base station and the difference of described signal received power.

In conjunction with the third aspect, in the 7th kind of possible implementation, described processor, the concrete direction of arrival that is used for measuring described downlink reference signal with frequency neighbours small-cell base station; Determine the beam forming deflection of described dispatch terminal according to described direction of arrival, described beam forming deflection and described direction of arrival meet away from threshold value; Dispatch terminal corresponding to described beam forming deflection dispatched.

the 7th kind of possible implementation in conjunction with the third aspect, in the 8th kind of possible implementation, also comprise reflector, described reflector is used for after described processor measures the direction of arrival of described downlink reference signal, the angle of arrival indication information that is used to indicate described direction of arrival is notified described with frequency neighbours small-cell base station, so that described same neighbours' small-cell base station is frequently dispatched according to described angle of arrival indication information select target neighbours terminal, described target neighbours' terminal is described terminal with neighbours' small-cell base station service frequently, and the beam forming deflection of described target neighbours' terminal and described direction of arrival meet away from threshold value.

In conjunction with the 8th kind of possible implementation of the third aspect, in the 9th kind of possible implementation, described angle of arrival indication information comprises: described direction of arrival or pre-coding matrix indication.

In conjunction with the third aspect, in the tenth kind of possible implementation, described processor, also be used for determining described same neighbours' small-cell base station and uplink interference subframe frequently before the pattern measurement amount of measuring described downlink reference signal with frequency neighbours small-cell base station.

The tenth kind of possible implementation in conjunction with the third aspect, in the 11 kind of possible implementation, described processor, when determining described same neighbours' small-cell base station frequently and uplink interference subframe, resolve the broadcast of another base station if specifically be used for described small-cell base station, get cell ID and up-downgoing proportioning that described broadcast comprises, determine that described another base station is described with frequency neighbours small-cell base station; Determine described uplink interference subframe according to described up-downgoing proportioning.

The tenth kind of possible implementation in conjunction with the third aspect, in the 12 kind of possible implementation, described processor, when determining described same neighbours' small-cell base station frequently and uplink interference subframe, specifically be used for detecting at the sub-frame of uplink of self the signal received power of the downlink reference signal of another base station, if described signal received power is more than or equal to predetermined threshold value, determine that described another base station is described with frequency neighbours small-cell base station, and described sub-frame of uplink is described uplink interference subframe.

In such scheme, small-cell base station is by measuring the pattern measurement amount with the downlink reference signal of frequency neighbours small-cell base station in the uplink interference subframe with frequency neighbours small-cell base station, and according to this pattern measurement amount, determine the schedule information of dispatch terminal according to this, make it possible to reduce with the interference between small-cell base station frequently according to this pattern measurement amount.

Description of drawings

Fig. 1 is a kind of optional application scenarios signal that the present invention disturbs processing method embodiment;

Fig. 2 is the schematic flow sheet that the present invention disturbs processing method one embodiment;

Fig. 3 is the schematic flow sheet that the present invention disturbs another embodiment of processing method;

Fig. 4 is that the present invention disturbs the up punching schematic diagram in another embodiment of processing method;

Fig. 5 is the schematic flow sheet that the present invention disturbs the another embodiment of processing method;

Fig. 6 is the orientation schematic diagram that the present invention disturbs the another embodiment of processing method;

Fig. 7 is the structural representation of base station embodiment of the present invention;

Fig. 8 is the entity structure schematic diagram of base station one embodiment of the present invention;

Fig. 9 is the entity structure schematic diagram of another embodiment of base station of the present invention.

Embodiment

Fig. 1 is a kind of optional application scenarios signal that the present invention disturbs processing method embodiment, and illustrated in fig. 1 is a kind of isomery scene, under this isomery scene, has the less small-cell base station of a plurality of coverages in the coverage of macro base station (Macro); Between each small-cell base station,, if with frequently small-cell base station, may there is the interference between the terminal in the small-cell that interference between small-cell base station or small-cell base station cover, thereby the communication of small-cell is impacted.The interference processing method that the embodiment of the present invention provides, can be so that with the interference between small-cell base station frequently, be reduced, make under isomery scene shown in Figure 1, can support the dynamic TDD proportioning of the small-cell under the isomery scene, and reduce the interference that between small-cell, up-downgoing proportioning difference causes.

Embodiment one

Fig. 2 is the schematic flow sheet that the present invention disturbs processing method one embodiment, and the method can be that small-cell base station is performed, and as shown in Figure 2, the method can comprise:

201, small-cell base station in the uplink interference subframe with frequency neighbours small-cell base station, is measured the pattern measurement amount of described downlink reference signal with frequency neighbours small-cell base station;

Wherein, if exist and disturb between small-cell base station and its same neighbours' small-cell base station frequently, in the sub-frame of uplink of small-cell base station, also can receive the downlink reference signal of its neighbours' small-cell base station so, above-mentioned sub-frame of uplink can be called the uplink interference subframe.Small-cell base station can be measured its pattern measurement amount with the downlink reference signal of frequency neighbours small-cell base station in this uplink interference subframe.Such as the signal received power that comprises downlink reference signal or the direction of arrival of downlink reference signal etc. of described pattern measurement amount, different pattern measurement amounts can be taked different interference processing modes, specifically will describe in detail in follow-up embodiment.

Further, small-cell base station before measuring its pattern measurement amount with the downlink reference signal of frequency neighbours small-cell base station, can determine first that it is with frequency neighbours' small-cell base station and described uplink interference subframe.Because the small-cell base station at the small-cell base station periphery may have a plurality of, which small-cell base station can be called its neighbours' small-cell base station so on earth, and which sub-frame of uplink can be subject to the interference of the downlink reference signal of neighbours' small-cell base station, can measure according to the method for plurality of optional.

For example, suppose that each small-cell base station is all sending broadcast, and broadcast comprises the cell ID of residential quarter under this base station and the up-downgoing proportioning of configuration; Small-cell base station can be resolved the broadcast of another base station,, if can correctly resolve this broadcast and therefrom get cell ID and the up-downgoing proportioning that described broadcast comprises, can show that this another base station is with frequency neighbours small-cell base station.And small-cell base station can be determined the uplink interference subframe according to described up-downgoing proportioning.

Again for example, small-cell base station can detect the signal received power of the downlink reference signal of another base station in the sub-frame of uplink of self, if described signal received power is more than or equal to predetermined threshold value, determine that another base station is described with frequency neighbours small-cell base station, and described sub-frame of uplink is described uplink interference subframe.

202, small-cell base station, according to described pattern measurement amount, is identified for the schedule information of dispatch terminal;

Wherein, as above, pattern measurement amount in 201 is such as being: the signal received power of downlink reference signal or the direction of arrival of downlink reference signal etc., and so different pattern measurement amounts, being used in this step the schedule information of determining also may be different.

For example, if the pattern measurement amount that small-cell base station obtains is the signal received power with the downlink reference signal of frequency neighbours small-cell base station, small-cell base station can be according to this signal received power, calculates the expection transmitting power of the dispatch terminal that this small-cell base station will dispatch; Described expection transmitting power refers to, if will reduce the interference of neighbours' small-cell base station, and the uplink transmission power that dispatch terminal need to adopt.Small-cell base station is also determined the uplink transmission power of described dispatch terminal according to this expection transmitting power, because dispatch terminal has its maximum uplink transmission power, above-mentioned expection transmitting power and this maximum uplink transmission power need to be compared, determine final uplink transmission power.Be under this mode, the capable transmitting power of dispatch terminal is the schedule information that small-cell base station obtains.

Optionally, described above-mentioned expection transmitting power and this maximum uplink transmission power are compared, determine final uplink transmission power, also may comprise multiple situation.

A kind of situation is, if described expection transmitting power, less than the maximum uplink transmission power of described dispatch terminal, is determined the uplink transmission power of described expection transmitting power as described dispatch terminal.Further, described dispatch terminal can be that small-cell base station is selected to determine from least two terminals to be selected; If there are at least two the to be selected terminals of described expection transmitting power less than the maximum uplink transmission power of terminal described to be selected, small-cell base station can select the terminal to be selected of the described expection transmitting power minimum in described at least two terminals to be selected as described dispatch terminal.

Another situation is,, if described expection transmitting power is greater than or equal to the maximum uplink transmission power of described dispatch terminal, determines the uplink transmission power of described maximum uplink transmission power as described dispatch terminal.At this moment, small-cell base station can be notified described dispatch terminal, does not send upstream data on the Resource Unit at described downlink reference signal place with frequency neighbours small-cell base station.And, small-cell base station can also be notified the uplink reference signals pattern of dispatch terminal described with frequency neighbours small-cell base station, so that described same neighbours' small-cell base station frequently is according to described uplink reference signals pattern, the neighbours terminal scheduling of the signal power of described uplink reference signals less than threshold value arrived in selective reception, and described neighbours' terminal is described terminal with neighbours' small-cell base station service frequently.

Optionally, in order to reduce the interference of neighbours' small-cell base station, the small-cell base station of the present embodiment can also be notified described with frequency neighbours small-cell base station, asks described power with the downlink data of neighbours' small-cell base station transmission frequently to be less than or equal to critical power; The transmitting power that described critical power equals described downlink reference signal with frequency neighbours small-cell base station deducts difference power, and described difference power equals the receptible peak signal received power with frequency neighbours small-cell base station of small-cell base station and the difference of described signal received power.

Again for example, if the pattern measurement amount that small-cell base station obtains is the direction of arrival with the downlink reference signal of frequency neighbours small-cell base station, small-cell base station can be according to this direction of arrival, determine the beam forming deflection of dispatch terminal, described beam forming deflection and described direction of arrival meet away from threshold value.Be that small-cell base station will be selected to dispatch away from the terminal of neighbours' small-cell base station, to reduce the interference of neighbours' small-cell base station, the schedule information that small-cell base station obtains is the beam forming deflection.

Optionally, small-cell base station can be notified the angle of arrival indication information that is used to indicate described direction of arrival described with frequency neighbours small-cell base station, so that described same neighbours' small-cell base station is frequently dispatched according to described angle of arrival indication information select target neighbours terminal, described target neighbours' terminal is described terminal with frequently neighbours' small-cell base station service, and the beam forming deflection of described target neighbours' terminal is satisfied with threshold value with described direction of arrival.For example this angle of arrival indication information, can comprise: described direction of arrival or pre-coding matrix indication.

203, small-cell base station is dispatched described dispatch terminal according to described schedule information.

For example, when schedule information was the uplink transmission power of dispatch terminal, small-cell base station was with described uplink transmission power notice dispatch terminal, and dispatch terminal just can adopt this uplink transmission power to send upstream data like this.Because this uplink transmission power is that small-cell base station calculates according to the signal received power of the downlink reference signal of neighbours' small-cell base station, the transmitting power of calculating for the interference that reduces neighbours' small-cell base station just, so dispatch terminal is about to effectively reduce described interference on carrying out according to this power.

For example, when schedule information was the beam forming deflection of dispatch terminal, small-cell base station can select dispatch terminal corresponding to this beam forming deflection to dispatch.Because this beam forming deflection is that small-cell base station calculates according to the direction of arrival of the downlink reference signal with frequency neighbours small-cell base station, the terminal away from from direction of arrival of signal of selecting for the interference that reduces neighbours' small-cell base station is just dispatched, so select dispatch terminal corresponding to this beam forming deflection to dispatch, will effectively reduce the interference of described neighbours' small-cell base station.

Below will pass through respectively two embodiment, the pattern measurement amount that small-cell base station is measured is the same signal received power of the downlink reference signal of neighbours' small-cell base station frequently and the direction of arrival of downlink reference signal, and the concrete interference processing method under both of these case describes.

Embodiment two

Fig. 3 is the schematic flow sheet that the present invention disturbs another embodiment of processing method, and in the present embodiment, adopting the pattern measurement amount of the small-cell base station measurement of TDD mode is the signal received power, calculates the uplink transmission power of dispatch terminal according to this signal received power.As shown in Figure 3, the method can comprise:

301, small-cell base station in the uplink interference subframe with frequency neighbours small-cell base station, is measured the signal received power with the downlink reference signal of frequency neighbours small-cell base station;

Wherein, described downlink reference signal can be for example that (Cell Specific Reference Signal is called for short: CRS) cell specific reference signal.In concrete enforcement, small-cell base station can go thereon in subframe that to detect with the signal received power of the downlink reference signal of neighbours' small-cell base station frequently be Reference Signal Received Power (Reference Signal Receiving Power, be called for short: RSRP), this RSRP can represent the interference level between base station, and this interference level can represent with Iot.If small-cell base station detects RSRP greater than predetermined threshold value, can think that neighbours' small-cell base station sends in this sub-frame of uplink descending, can think that namely this sub-frame of uplink is the uplink interference subframe.

Optionally, small-cell base station can also know that it is with frequency neighbours' small-cell base station and uplink interference subframe by other approach.Wherein, whether relevant to the transmitting power of its downlink reference signal as neighbours' small-cell base station, if the downlink reference signal transmitting power of base station changes, the neighbours zone also can change.Small-cell base station knows that its mode with frequency neighbours' small-cell base station and uplink interference subframe is as follows:

For example, small-cell base station can obtain by its higher level's macro base station cell ID and the current up-downgoing proportioning of the neighbours' small-cell base station in the macrocell scope.Concrete, can suppose to have ideal fiber between small-cell base station and the macro base station under it, the information interaction time delay between small-cell base station and macro base station is less, can be in 100ms.

Neighbours' small-cell base station can be divided by geographical position, small-cell base station can be according to the path loss formula, estimate the zone that disturb mutually current this residential quarter and other residential quarters, then macro base station is informed in this zone, small-cell base station is notified as neighbor base stations in the base station of macro base station in should zone.Such as, described path loss formula is as follows: Pr=Pt-PL, and wherein, Pt is transmitting power (unit is dbm), and PL is path loss (unit is db), and this PL is the function of covering radius, and Pr is received power (unit is dbm).Suppose that Pr thinks and has interference greater than default thresholding, can calculate the covering radius of this moment,, when other small-cell base stations are positioned at this covering radius, think neighbours' small-cell base station.With this covering radius notice macro base station, macro base station will will be positioned at cell ID and the current up-downgoing proportioning notice small-cell base station of neighbours' small-cell base station in this covering radius zone in macrocell.Small-cell base station can be determined according to current up-downgoing proportioning the position of uplink interference subframe.

Again for example, can also obtain by space interface signaling cell ID and the current up-downgoing proportioning of neighbours' small-cell base station between base station.Concrete, can suppose cell ID and current up-downgoing proportioning that each base station all will be separately, adopt the power transmission identical with downlink reference signal.If small-cell base station is resolved the broadcast of another base station, can get cell ID and up-downgoing proportioning that described broadcast comprises, determine that described another base station is with frequency neighbours small-cell base station.Small-cell base station is determined described uplink interference subframe according to described up-downgoing proportioning.The interaction time delay of this channel of eating dishes without rice or wine is less, can be in 10ms.

Again for example, can adopt the synchronizing channel of separating neighbor base stations between base station is master sync signal (Primary Synchronization Signal, be called for short: PSS) and auxiliary synchronous signals (Secondary Synchronization Signals, be called for short: SSS) obtain cell physical layer identifiers, further by the system message (SIB) of separating neighbor base stations, obtain current up-downgoing proportioning.Because at present PSS and SSS are that every 10ms can obtain, and SIB to be every 640ms can obtain, this interaction time delay is larger.Small-cell base station is determined the position of uplink interference subframe again according to the up-downgoing proportioning.

302, small-cell base station, according to the signal received power of downlink reference signal, calculates the expection transmitting power of described dispatch terminal;

Wherein, small-cell base station is in order to compensate due to inter base station interference, be described interference level Iot, can calculate its terminal of dispatching uplink transmission power of (can be called dispatch terminal) according to the signal received power, the present embodiment will be called according to the power that the signal received power calculates the expection transmitting power.

Can calculate by following formula: P=min(Pmax, target_SINR+PL+ (N+Iot) B), wherein Pmax is the maximum uplink transmission power of terminal, is for example 23dbm; Target_SINR is target SINR level, value between [5db, 30db], target SINR level needed according to terminal, the code check that corresponding terminal adopts.PL is the path loss that terminal signaling arrives serving BS, and N is noise density, and Iot is interference level (RSRP that namely obtains in 301), and B is bandwidth, and (N+Iot) B represents to disturb the energy with noise.Sometimes, for the compensation to path loss of the terminal at balanced edge and center, introduce a scale factor before PL.

303, small-cell base station is determined the uplink transmission power of dispatch terminal according to described expection transmitting power;

For example, if the expection transmitting power is determined the uplink transmission power of described expection transmitting power as described dispatch terminal less than the maximum uplink transmission power of dispatch terminal.

Further, if being small-cell base station, dispatch terminal selects to determine from least two terminals to be selected, have at least two the to be selected terminals of described expection transmitting power less than the maximum uplink transmission power of terminal described to be selected, small-cell base station can select the terminal to be selected of the described expection transmitting power minimum in described at least two terminals to be selected as described dispatch terminal.

Again for example,, if described expection transmitting power is greater than or equal to the maximum uplink transmission power of described dispatch terminal, determine the uplink transmission power of described maximum uplink transmission power as described dispatch terminal.

304, the uplink transmission power notice dispatch terminal that will determine of small-cell base station, so that described dispatch terminal adopts described uplink transmission power to send upstream data.

Wherein, if the uplink transmission power of dispatch terminal is maximum uplink transmission power, small-cell base station can also be notified dispatch terminal, Resource Unit (Resource Element at described downlink reference signal place with frequency neighbours small-cell base station, be called for short: do not send upstream data RE), to avoid data on this RE, be subject to the interference of the downlink reference signal of neighbours' small-cell base station.

With the up example that is emitted as in LTE, referring to Fig. 4, Fig. 4 is that the present invention disturbs the up punching schematic diagram in another embodiment of processing method.Comprise in a time slot Individual symbol, comprise in each symbol Individual Resource Block, in each Resource Block, each unit is Resource Unit, comprises altogether 12

Individual Resource Unit.Suppose that the 3rd the left oblique line of symbol is that uplink reference signals is position.The shared RE of neighbours' downlink reference signal of grid line representative.In a time slot can be for the resource of the transmission of data so 12

Wherein

The RE number that expression neighbours downlink reference signal takies, take in Fig. 4 as example,

Optionally, in order further to reduce the interference of neighbours' small-cell base station, when the small-cell base station of the present embodiment is greater than or equal to the maximum uplink transmission power of described dispatch terminal in the expection transmitting power, maximum uplink transmission power at definite uplink transmission power, and notification terminal does not send outside upstream data on the RE at downlink reference signal place, can also notify the small-cell base station with the frequency neighbours, ask described power with the downlink data of neighbours' small-cell base station transmission frequently to be less than or equal to critical power.

The transmitting power that described critical power equals described downlink reference signal with frequency neighbours small-cell base station deducts difference power, and described difference power equals the receptible described peak signal received power with frequency neighbours small-cell base station of described small-cell base station and the difference of described signal received power.Namely make the power of the emission downlink data of neighbours' small-cell base station can not surpass the P – Δ Iot(dbm of downlink reference signal power), Δ Iot=(Pmax – target_SINR – PL – NB)/B – Iot wherein.

Optionally, can also continue to carry out 305 and subsequent step,, so that neighbours' small-cell base station can select to dispatch away from neighbours' terminal of the terminal of this small-cell base station scheduling, further reduce terminal under this small-cell base station and the interference between the terminal under neighbours' small-cell base station.

305, small-cell base station will self be prepared the same neighbours' small-cell base station frequently of uplink reference signals pattern notice of the dispatch terminal of scheduling;

Wherein, described uplink reference signals can be targeting sequencing preamble, or the probe reference signal (Sounding Reference Signals, be called for short: SRS), perhaps other uplink reference signals.

306, small-cell base station notice dispatch terminal, send uplink reference signals according to the uplink transmission power of determining;

Wherein, described definite uplink transmission power is namely the uplink transmission power of determining in 304, this step small-cell base station is that notification terminal is according to this uplink transmission power, be sent in notice in 305 and, to the uplink reference signals of neighbours' small-cell base station, so that neighbours' small-cell base station is controlled, carry out the UE-UE measurement.

307, neighbours' small-cell base station, according to the uplink reference signals pattern, is notified the receiving intensity of its zone uplink reference signals that interior terminal to report receives;

Wherein, with frequency neighbours small-cell base station, can notify its zone interior terminal, the receiving intensity of the uplink reference signals of the terminal emission under the executive agent small-cell base station of measurement the present embodiment, and indicate it to report this receiving intensity.Here the terminal with neighbours' small-cell base station service frequently all can be called neighbours' terminal.

308, the neighbours terminal scheduling of the signal power of described uplink reference signals less than threshold value arrived in the selective reception of neighbours' small-cell base station;

Wherein, neighbours' small-cell base station can State selective measurements be dispatched to the less terminal of uplink reference signals, and this terminal is far away apart from the terminal of small-cell base station, the interference between the terminal that causes with minimizing up-downgoing proportioning difference.

309, neighbours' small-cell base station notice small-cell base station, follow-up uplink transmission power dispatch terminal according to determining;

Wherein, it is complete that neighbours' small-cell base station is equivalent to notify in this step small-cell base station to consult, in follow-up subframe, neighbours' small-cell base station will be dispatched according to self the less terminal of uplink reference signals that measures of its selection, reduce the interference between terminal; And small-cell base station will notify the dispatch terminal under it to carry out up transmission according to above-mentioned definite uplink transmission power, reduce the interference between base station.

The interference processing method of the present embodiment, small-cell base station calculates the uplink transmission power of dispatch terminal by the signal received power of the downlink reference signal according to neighbours' small-cell base station, and the above-mentioned neighbours' small-cell base station that passes through controls its power that sends downlink data etc., and disturb the base station that can reduce between small-cell base station; And the present embodiment also notifies neighbours' small-cell base station to select to dispatch away from neighbours' terminal of this small-cell dispatch terminal, has also reduced the interference between the terminal under the small-cell base station.

Embodiment three

Fig. 5 is the schematic flow sheet that the present invention disturbs the another embodiment of processing method, in the present embodiment, adopting the pattern measurement amount of the small-cell base station measurement of TDD mode is direction of arrival, calculate the beam forming deflection of dispatch terminal according to this direction of arrival, thereby determine the terminal corresponding with the beam forming deflection that will dispatch.As shown in Figure 5, the method can comprise:

501, small-cell base station in the uplink interference subframe with frequency neighbours small-cell base station, is measured the direction of arrival with the downlink reference signal of frequency neighbours small-cell base station;

Wherein, described downlink reference signal can be for example CRS.In concrete enforcement, small-cell base station can be gone thereon in subframe and be detected direction of arrival with the downlink reference signal of frequency neighbours small-cell base station, by this direction of arrival, determines that neighbours' small-cell base station is positioned at the orientation of self.

Can be referring to Fig. 6, Fig. 6 is the orientation schematic diagram that the present invention disturbs the another embodiment of processing method.The direction of arrival of the downlink reference signal of neighbours' small-cell base station is j1, and namely the deflection between neighbours' small-cell base station and this small-cell base station is j1.

Optionally, before the measuring-signal angle of arrival,, if small-cell base station is not also determined the position of uplink interference subframe, can detect the signal received power with the downlink reference signal of frequency neighbours small-cell base station; , if this power, greater than predetermined threshold value, is thought the uplink interference subframe, further estimate above-mentioned direction of arrival.Small-cell base station can also know that it is with frequency neighbours' small-cell base station and uplink interference subframe by other approach, small-cell base station knows that its mode with frequency neighbours' small-cell base station and uplink interference subframe is identical with each mode described in embodiment two, specifically can be referring to embodiment two.

502, small-cell base station, according to the direction of arrival of downlink reference signal, is determined the beam forming deflection of described dispatch terminal, and described beam forming deflection and described direction of arrival meet away from threshold value;

Wherein, small-cell base station can be according to direction of arrival, select to dispatch away from the terminal of this direction of arrival direction in self small-cell, namely select beam forming deflection j2 and the direction of arrival j1 that measures to meet away from threshold value, meet | j2+180 °-j1|＜Th1, wherein, Th1 is described threshold value, wherein j1, j2, Th1 unit is all angle, also can turn to the relation of radian, | j2 '+π-j1 ' |＜Th1 ', Th1 '=π * Th1/180 ° wherein, be j1 ', j2 ', Th1 ' unit is all angle.Small-cell base station will select terminal corresponding to this beam forming deflection to dispatch, and be called dispatch terminal.

Optionally, small-cell base station can also be carried out following 503 and subsequent step.

503, small-cell base station will be used to indicate the angle of arrival indication information notice of described direction of arrival with frequency neighbours small-cell base station;

Wherein, small-cell base station can also will be used to indicate the angle of arrival indication information notice of described direction of arrival with frequency neighbours small-cell base station, so that neighbours' small-cell base station is also selected to dispatch away from neighbours' terminal of direction of arrival direction.

For example, described angle of arrival indication information can comprise: described direction of arrival, perhaps, owing to may adopting the mode based on code book to realize beam forming in real system, (Precode Matrix Index is called for short: PMI) can to notify the indication of neighbor base stations pre-coding matrix here.

504, neighbours' small-cell base station is dispatched according to angle of arrival indication information select target neighbours terminal, described target neighbours' terminal is described terminal with frequently neighbours' small-cell base station service, and the beam forming deflection of described target neighbours' terminal is satisfied with threshold value with described direction of arrival.

Wherein, the beam forming deflection j3 of target neighbours' terminal and direction of arrival j1, also meet the condition away from threshold value, for example | and j3-j1|＜Th1, wherein, Th1 is described threshold value, in like manner also can be expressed as the radian relation.

505, small-cell base station and neighbours' small-cell base station are confirmed to consult complete.

Wherein, it is complete that neighbours' small-cell base station is equivalent to notify in this step small-cell base station to consult, be that small-cell base station will select the dispatch terminal shown in Fig. 6 to dispatch, neighbours' small-cell base station is dispatched select target neighbours terminal, and these two terminals are all the terminals away from the direction of arrival direction.In follow-up subframe, small-cell base station and neighbours' small-cell base station will be dispatched according to the terminal of its selection.

The interference processing method of the present embodiment, small-cell base station calculates by the direction of arrival of the downlink reference signal according to neighbours' small-cell base station the terminal that will dispatch, can reduce the interference between small-cell base station.

Embodiment four

Fig. 7 is the structural representation of base station embodiment of the present invention, and this base station can be small-cell base station, carries out the method for any embodiment of the present invention.As shown in Figure 7, this base station can comprise: information acquisition unit 71, scheduling processing unit 72 and scheduling execution units 73; Wherein,

Information acquisition unit 71, be used in the uplink interference subframe with frequency neighbours small-cell base station, measures the pattern measurement amount of described downlink reference signal with frequency neighbours small-cell base station;

Scheduling processing unit 72, be used for the described pattern measurement amount of measuring according to described information acquisition unit, is identified for the schedule information of dispatch terminal;

Scheduling execution units 73, be used for according to the described schedule information that described scheduling processing unit is determined, described dispatch terminal being dispatched.

Further, described information acquisition unit 71, specifically be used in the uplink interference subframe with frequency neighbours small-cell base station, measures the signal received power of described downlink reference signal with frequency neighbours small-cell base station;

Described scheduling processing unit 72, the concrete described signal received power of measuring according to described information acquisition unit that is used for, the expection transmitting power of the described dispatch terminal of calculating; And determine the uplink transmission power of described dispatch terminal according to described expection transmitting power;

Described scheduling execution units 73, concrete being used for notified described dispatch terminal with the described uplink transmission power that described scheduling processing unit is determined, so that described dispatch terminal adopts described uplink transmission power to send upstream data.

Further, described scheduling processing unit 72, when according to described expection transmitting power, determining the uplink transmission power of described dispatch terminal, if the concrete maximum uplink transmission power of described expection transmitting power less than described dispatch terminal that be used for, determine the uplink transmission power of described expection transmitting power as described dispatch terminal.

Further, described scheduling processing unit 72, also be used for described dispatch terminal be described small-cell base station from least two when selecting terminal to select to determine,, if there are at least two the to be selected terminals of described expection transmitting power less than the maximum uplink transmission power of terminal described to be selected, select the terminal to be selected of the described expection transmitting power minimum in described at least two terminals to be selected as dispatch terminal.

Further, described scheduling processing unit 72, when according to described expection transmitting power, determining the uplink transmission power of described dispatch terminal, if the concrete maximum uplink transmission power that is greater than or equal to described dispatch terminal for described expection transmitting power, determine the uplink transmission power of described maximum uplink transmission power as described dispatch terminal;

Described scheduling execution units 73, also be used for notifying described dispatch terminal, do not send upstream data on the Resource Unit at described downlink reference signal place with frequency neighbours small-cell base station.

Further, described scheduling execution units 73, also be used for after described scheduling processing unit is determined the uplink transmission power of described maximum uplink transmission power as described dispatch terminal, the uplink reference signals pattern of described dispatch terminal is notified described with frequency neighbours small-cell base station, so that described same neighbours' small-cell base station frequently is according to described uplink reference signals pattern, the neighbours terminal scheduling of the signal power of described uplink reference signals less than threshold value arrived in selective reception, and described neighbours' terminal is described terminal with neighbours' small-cell base station service frequently.Do like this and can, so that neighbours' small-cell base station can be selected to dispatch away from neighbours' terminal of the terminal of this small-cell base station scheduling, further reduce terminal under this small-cell base station and the interference between the terminal under neighbours' small-cell base station.

Further, described scheduling execution units 73, also be used for when described scheduling processing unit determines that described expection transmitting power is greater than or equal to the maximum uplink transmission power of described dispatch terminal, notify described same neighbours' small-cell base station frequently, ask described power with the downlink data of neighbours' small-cell base station transmission frequently to be less than or equal to critical power; The transmitting power that described critical power equals described downlink reference signal with frequency neighbours small-cell base station deducts difference power, and described difference power equals the receptible described peak signal received power with frequency neighbours small-cell base station of described small-cell base station and the difference of described signal received power.

Further, described information acquisition unit 71, the concrete direction of arrival that is used for measuring described downlink reference signal with frequency neighbours small-cell base station;

Described scheduling processing unit 72, specifically be used for the described direction of arrival that measures according to described information acquisition unit, determines the beam forming deflection of described dispatch terminal, and described beam forming deflection and described direction of arrival meet away from threshold value;

Described scheduling execution units 73, concrete being used for dispatches dispatch terminal corresponding to described beam forming deflection.

further, described scheduling execution units 73, also be used for after described information acquisition unit measures the direction of arrival of described downlink reference signal, the angle of arrival indication information that is used to indicate described direction of arrival is notified described with frequency neighbours small-cell base station, so that described same neighbours' small-cell base station is frequently dispatched according to described angle of arrival indication information select target neighbours terminal, described target neighbours' terminal is described terminal with neighbours' small-cell base station service frequently, and the beam forming deflection of described target neighbours' terminal and described direction of arrival meet away from threshold value.

Further, described angle of arrival indication information comprises: described direction of arrival or pre-coding matrix indication.

Further, described information acquisition unit 71, also be used for determining described same neighbours' small-cell base station and uplink interference subframe frequently before the pattern measurement amount of measuring described downlink reference signal with frequency neighbours small-cell base station.

Further, described information acquisition unit 71, when determining described same neighbours' small-cell base station frequently and uplink interference subframe, resolve the broadcast of another base station if specifically be used for described small-cell base station, get cell ID and up-downgoing proportioning that described broadcast comprises, determine that described another base station is described with frequency neighbours small-cell base station; Determine described uplink interference subframe according to described up-downgoing proportioning.

Further, described information acquisition unit 71, when determining described same neighbours' small-cell base station frequently and uplink interference subframe, specifically be used for detecting at the sub-frame of uplink of self the signal received power of the downlink reference signal of another base station, if described signal received power is more than or equal to predetermined threshold value, determine that described another base station is described with frequency neighbours small-cell base station, and described sub-frame of uplink is the uplink interference subframe.

The base station of the present embodiment, by measured the pattern measurement amount with the downlink reference signal of frequency neighbours small-cell base station by information acquisition unit, and by scheduling processing unit, according to this pattern measurement amount, determine schedule information, dispatch terminal is dispatched according to this schedule information by scheduling execution units, made it possible to reduce with the interference between small-cell base station frequently according to this pattern measurement amount.

Embodiment five

Fig. 8 is the entity structure schematic diagram of base station one embodiment of the present invention, and this base station can be small-cell base station, carries out the method for any embodiment of the present invention.As shown in Figure 8, this base station can comprise: receiver 81 and processor 82; Wherein,

Receiver 81, be used for receiving and the same uplink interference subframe of neighbours' small-cell base station frequently;

Processor 82, be used for the described uplink interference subframe that receives at described receiver, measures the pattern measurement amount of described downlink reference signal with frequency neighbours small-cell base station; Be identified for the schedule information of dispatch terminal according to described pattern measurement amount; And, according to described schedule information, dispatch terminal is dispatched.

Fig. 9 is the entity structure schematic diagram of another embodiment of base station of the present invention, and as shown in Figure 9, on the basis of structure shown in Figure 8, this base station also comprises reflector 83;

Processor 82, concrete being used in the uplink interference subframe with frequency neighbours small-cell base station, measure the described same signal received power of the downlink reference signal of neighbours' small-cell base station frequently; Calculate the expection transmitting power of described dispatch terminal according to described signal received power; And determine the uplink transmission power of described dispatch terminal according to described expection transmitting power;

Reflector 83, be used for notifying described dispatch terminal with the described uplink transmission power that described processor is determined, so that described dispatch terminal adopts described uplink transmission power to send upstream data.

Further, processor 82, when according to described expection transmitting power, determining the uplink transmission power of described dispatch terminal, if the concrete maximum uplink transmission power of described expection transmitting power less than described dispatch terminal that be used for, determine the uplink transmission power of described expection transmitting power as described dispatch terminal.

Further, processor 82, also be used for described dispatch terminal be described small-cell base station from least two when selecting terminal to select to determine,, if there are at least two the to be selected terminals of described expection transmitting power less than the maximum uplink transmission power of terminal described to be selected, select the terminal to be selected of the described expection transmitting power minimum in described at least two terminals to be selected as described dispatch terminal.

Further, processor 82, when according to described expection transmitting power, determining the uplink transmission power of described dispatch terminal, if the concrete maximum uplink transmission power that is greater than or equal to described dispatch terminal for described expection transmitting power, determine the uplink transmission power of described maximum uplink transmission power as described dispatch terminal; Reflector 83, also be used for notifying described dispatch terminal, do not send upstream data on the Resource Unit at described downlink reference signal place with frequency neighbours small-cell base station.

Further, reflector 83, also be used for after described processor 82 is determined the uplink transmission power of described maximum uplink transmission power as described dispatch terminal, the uplink reference signals pattern of described dispatch terminal is notified described with frequency neighbours small-cell base station, so that described same neighbours' small-cell base station frequently is according to described uplink reference signals pattern, the neighbours terminal scheduling of the signal power of described uplink reference signals less than threshold value arrived in selective reception, and described neighbours' terminal is described terminal with neighbours' small-cell base station service frequently.

Further, reflector 83, also be used for when described processor 82 determines that described expection transmitting power is greater than or equal to the maximum uplink transmission power of described dispatch terminal, notify described same neighbours' small-cell base station frequently, ask described power with the downlink data of neighbours' small-cell base station transmission frequently to be less than or equal to critical power; The transmitting power that described critical power equals described downlink reference signal with frequency neighbours small-cell base station deducts difference power, and described difference power equals the receptible described peak signal received power with frequency neighbours small-cell base station of described small-cell base station and the difference of described signal received power.

Further, processor 82, the concrete direction of arrival that is used for measuring described downlink reference signal with frequency neighbours small-cell base station; Determine the beam forming deflection of described dispatch terminal according to described direction of arrival, described beam forming deflection and described direction of arrival meet away from threshold value; Dispatch terminal corresponding to described beam forming deflection dispatched.

Further, reflector 83, be used in described processing, 82 measure the direction of arrival of described downlink reference signal after, the angle of arrival indication information that is used to indicate described direction of arrival is notified described with frequency neighbours small-cell base station, so that described same neighbours' small-cell base station is frequently dispatched according to described angle of arrival indication information select target neighbours terminal, described target neighbours' terminal is described terminal with frequently neighbours' small-cell base station service, and the beam forming deflection of described target neighbours' terminal is satisfied with threshold value with described direction of arrival.

Further, described processor 82, also be used for determining with frequency neighbours' small-cell base station and uplink interference subframe before the pattern measurement amount of the described downlink reference signal with frequency neighbours small-cell base station of measurement.

Further, processor 82, when determining described same neighbours' small-cell base station frequently and uplink interference subframe, resolve the broadcast of another base station if specifically be used for described small-cell base station, get cell ID and up-downgoing proportioning that described broadcast comprises, determine that described another base station is described with frequency neighbours small-cell base station; Determine described uplink interference subframe according to described up-downgoing proportioning.

Further, processor 82, when determining described same neighbours' small-cell base station frequently and uplink interference subframe, specifically be used for detecting at the sub-frame of uplink of self the signal received power of the downlink reference signal of another base station, if described signal received power is more than or equal to predetermined threshold value, determine that described another base station is described with frequency neighbours small-cell base station, and described sub-frame of uplink is described uplink interference subframe.

The base station of the present embodiment, pattern measurement amount by the downlink reference signal in the uplink interference subframe of being measured the same frequency neighbours small-cell base station that receiver receives by processor, and according to this pattern measurement amount, determine schedule information and according to this schedule information, dispatch terminal dispatched, make it possible to reduce with the interference between small-cell base station frequently according to this pattern measurement amount.

One of ordinary skill in the art will appreciate that: all or part of step that realizes above-mentioned each embodiment of the method can be completed by the hardware that program command is correlated with.Aforesaid program can be stored in a computer read/write memory medium.This program when carrying out, is carried out the step that comprises above-mentioned each embodiment of the method; And aforesaid storage medium comprises: the various media that can be program code stored such as ROM, RAM, magnetic disc or CD.

It should be noted that finally: above each embodiment, only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to aforementioned each embodiment, the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps some or all of technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the scope of various embodiments of the present invention technical scheme.

Claims

1. one kind is disturbed processing method, it is characterized in that, comprising:

2. method according to claim 1, is characterized in that,

The pattern measurement amount of the described downlink reference signal with frequency neighbours small-cell base station of described measurement comprises: the signal received power of measuring described downlink reference signal with frequency neighbours small-cell base station;

Described small-cell base station, according to described pattern measurement amount, is identified for the schedule information of dispatch terminal, comprising: described small-cell base station, according to described signal received power, calculates the expection transmitting power of described dispatch terminal; And determine the uplink transmission power of described dispatch terminal according to described expection transmitting power;

Describedly according to described schedule information, described dispatch terminal is dispatched, comprising: described small-cell base station is notified described dispatch terminal with described uplink transmission power, so that described dispatch terminal adopts described uplink transmission power to send upstream data.

3. method according to claim 2, is characterized in that, the described uplink transmission power of determining described dispatch terminal according to described expection transmitting power comprises:

If described expection transmitting power, less than the maximum uplink transmission power of described dispatch terminal, is determined the uplink transmission power of described expection transmitting power as described dispatch terminal.

4. method according to claim 3, is characterized in that, described dispatch terminal is that described small-cell base station is selected to determine from least two terminals to be selected;

If there are at least two the to be selected terminals of described expection transmitting power less than the maximum uplink transmission power of terminal described to be selected, described dispatch terminal is that described small-cell base station is selected to determine from least two terminals to be selected, and comprising: select the terminal to be selected of the described expection transmitting power minimum in described at least two terminals to be selected as described dispatch terminal.

5. method according to claim 2, is characterized in that, the described uplink transmission power of determining described dispatch terminal according to described expection transmitting power comprises:

, if described expection transmitting power is greater than or equal to the maximum uplink transmission power of described dispatch terminal, determine the uplink transmission power of described maximum uplink transmission power as described dispatch terminal;

Describedly according to described schedule information, described dispatch terminal is dispatched, also comprise: described small-cell base station is notified described dispatch terminal, does not send upstream data on described Resource Unit with the downlink reference signal place of neighbours' small-cell base station frequently.

6. method according to claim 5, is characterized in that, described determine the uplink transmission power of described maximum uplink transmission power as described dispatch terminal after, also comprise:

Described small-cell base station is notified the uplink reference signals pattern of described dispatch terminal described with frequency neighbours small-cell base station, so that described same neighbours' small-cell base station frequently is according to described uplink reference signals pattern, the neighbours terminal scheduling of the signal power of described uplink reference signals less than threshold value arrived in selective reception, and described neighbours' terminal is described terminal with neighbours' small-cell base station service frequently.

7. method according to claim 2, is characterized in that, if described expection transmitting power is greater than or equal to the maximum uplink transmission power of described dispatch terminal, described method also comprises:

Described small-cell base station is notified described with frequency neighbours small-cell base station, asks described power with the downlink data of neighbours' small-cell base station transmission frequently to be less than or equal to critical power;

The transmitting power that described critical power equals described downlink reference signal with frequency neighbours small-cell base station deducts difference power, and described difference power equals the receptible described peak signal received power with frequency neighbours small-cell base station of described small-cell base station and the difference of described signal received power.

8. method according to claim 1, is characterized in that,

The pattern measurement amount of the described downlink reference signal with frequency neighbours small-cell base station of described measurement comprises: the direction of arrival of measuring described downlink reference signal with frequency neighbours small-cell base station;

Described small-cell base station is according to described pattern measurement amount, be identified for the schedule information of dispatch terminal, comprise: described small-cell base station is according to described direction of arrival, determine the beam forming deflection of described dispatch terminal, described beam forming deflection and described direction of arrival meet away from threshold value;

Describedly according to described schedule information, described dispatch terminal is dispatched, comprising: described small-cell base station is dispatched dispatch terminal corresponding to described beam forming deflection.

9. method according to claim 8, is characterized in that, after the direction of arrival of the described downlink reference signal with frequency neighbours small-cell base station of described measurement, also comprises:

Described small-cell base station will be used to indicate the angle of arrival indication information of described direction of arrival and notify described with frequency neighbours small-cell base station, so that described same neighbours' small-cell base station is frequently dispatched according to described angle of arrival indication information select target neighbours terminal, described target neighbours' terminal is described terminal with frequently neighbours' small-cell base station service, and the beam forming deflection of described target neighbours' terminal is satisfied with threshold value with described direction of arrival.

10. method according to claim 9, is characterized in that, described angle of arrival indication information comprises: described direction of arrival or pre-coding matrix indication.

11. method according to claim 1, is characterized in that, before the pattern measurement amount of the described downlink reference signal with frequency neighbours small-cell base station of described measurement, also comprises:

Described small-cell base station is determined described with frequency neighbours' small-cell base station and described uplink interference subframe.

12. method according to claim 11, is characterized in that, described small-cell base station is determined described with frequency neighbours' small-cell base station and described uplink interference subframe, comprising:

If described small-cell base station is resolved the broadcast of another base station, get cell ID and up-downgoing proportioning that described broadcast comprises, determine that described another base station is with frequency neighbours small-cell base station;

Described small-cell base station is determined described uplink interference subframe according to described up-downgoing proportioning.

13. method according to claim 11, is characterized in that, described small-cell base station is determined described with frequency neighbours' small-cell base station and described uplink interference subframe, comprising:

Described small-cell base station detects the signal received power of the downlink reference signal of another base station in the sub-frame of uplink of self, if described signal received power is more than or equal to predetermined threshold value, determine that described another base station is described with frequency neighbours small-cell base station, and described sub-frame of uplink is described uplink interference subframe.

14. a base station, is characterized in that, comprising:

15. base station according to claim 14, is characterized in that,

Described information acquisition unit, specifically be used in the uplink interference subframe with frequency neighbours small-cell base station, measures the signal received power of described downlink reference signal with frequency neighbours small-cell base station;

Described scheduling processing unit, the concrete described signal received power of measuring according to described information acquisition unit that is used for, the expection transmitting power of the described dispatch terminal of calculating; And determine the uplink transmission power of described dispatch terminal according to described expection transmitting power;

Described scheduling execution units, concrete being used for notified described dispatch terminal with the described uplink transmission power that described scheduling processing unit is determined, so that described dispatch terminal adopts described uplink transmission power to send upstream data.

16. base station according to claim 15, is characterized in that,

Described scheduling processing unit, when according to described expection transmitting power, determining the uplink transmission power of described dispatch terminal, if the concrete maximum uplink transmission power of described expection transmitting power less than described dispatch terminal that be used for, determine the uplink transmission power of described expection transmitting power as described dispatch terminal.

17. base station according to claim 16, is characterized in that,

Described scheduling processing unit, also be used for described dispatch terminal be described small-cell base station from least two when selecting terminal to select to determine,, if there are at least two the to be selected terminals of described expection transmitting power less than the maximum uplink transmission power of terminal described to be selected, select the terminal to be selected of the described expection transmitting power minimum in described at least two terminals to be selected as described dispatch terminal.

18. base station according to claim 15, is characterized in that,

Described scheduling processing unit, when according to described expection transmitting power, determining the uplink transmission power of described dispatch terminal, if the concrete maximum uplink transmission power that is greater than or equal to described dispatch terminal for described expection transmitting power, determine the uplink transmission power of described maximum uplink transmission power as described dispatch terminal;

Described scheduling execution units, also be used for notifying described dispatch terminal, do not send upstream data on the Resource Unit at described downlink reference signal place with frequency neighbours small-cell base station.

19. base station according to claim 18, is characterized in that,

Described scheduling execution units, also be used for after described scheduling processing unit is determined the uplink transmission power of described maximum uplink transmission power as described dispatch terminal, the uplink reference signals pattern of described dispatch terminal is notified described with frequency neighbours small-cell base station, so that described same neighbours' small-cell base station frequently is according to described uplink reference signals pattern, the neighbours terminal scheduling of the signal power of described uplink reference signals less than threshold value arrived in selective reception, and described neighbours' terminal is described terminal with neighbours' small-cell base station service frequently.

20. base station according to claim 15, is characterized in that,

Described scheduling execution units, also be used for when described scheduling processing unit determines that described expection transmitting power is greater than or equal to the maximum uplink transmission power of described dispatch terminal, notify described same neighbours' small-cell base station frequently, ask described power with the downlink data of neighbours' small-cell base station transmission frequently to be less than or equal to critical power; The transmitting power that described critical power equals described downlink reference signal with frequency neighbours small-cell base station deducts difference power, and described difference power equals the receptible described peak signal received power with frequency neighbours small-cell base station of described small-cell base station and the difference of described signal received power.

21. base station according to claim 14, is characterized in that,

Described information acquisition unit, the concrete direction of arrival that is used for measuring described downlink reference signal with frequency neighbours small-cell base station;

Described scheduling processing unit, specifically be used for the described direction of arrival that measures according to described information acquisition unit, determines the beam forming deflection of described dispatch terminal, and described beam forming deflection and described direction of arrival meet away from threshold value;

Described scheduling execution units, concrete being used for dispatches dispatch terminal corresponding to described beam forming deflection.

22. base station according to claim 21, is characterized in that,

Described scheduling execution units, also be used for after described information acquisition unit measures the direction of arrival of described downlink reference signal, the angle of arrival indication information that is used to indicate described direction of arrival is notified described with frequency neighbours small-cell base station, so that described same neighbours' small-cell base station is frequently dispatched according to described angle of arrival indication information select target neighbours terminal, described target neighbours' terminal is described terminal with frequently neighbours' small-cell base station service, and the beam forming deflection of described target neighbours' terminal is satisfied with threshold value with described direction of arrival.

23. base station according to claim 22, is characterized in that, described angle of arrival indication information comprises: described direction of arrival or pre-coding matrix indication.

24. base station according to claim 14, is characterized in that,

Described information acquisition unit, also be used for determining described same neighbours' small-cell base station and uplink interference subframe frequently before the pattern measurement amount of measuring described downlink reference signal with frequency neighbours small-cell base station.

25. base station according to claim 24, is characterized in that,

Described information acquisition unit, when determining described same neighbours' small-cell base station frequently and uplink interference subframe, resolve the broadcast of another base station if specifically be used for described small-cell base station, get cell ID and up-downgoing proportioning that described broadcast comprises, determine that described another base station is described with frequency neighbours small-cell base station; Determine described uplink interference subframe according to described up-downgoing proportioning.

26. base station according to claim 24, is characterized in that,

Described information acquisition unit, when determining described same neighbours' small-cell base station frequently and uplink interference subframe, specifically be used for detecting at the sub-frame of uplink of self the signal received power of the downlink reference signal of another base station, if described signal received power is more than or equal to predetermined threshold value, determine that described another base station is described with frequency neighbours small-cell base station, and described sub-frame of uplink is described uplink interference subframe.